Using Singletones in PHP

Question

I want to use the created Singleton DB I in several class methods. Is it more suitable to create a Singleton separately in each method or to create it through __constructor () and access it from a variable in each method?

Thanks.

Answer 1

Given one singleton, the result will be the same: there will be only one instance of your database object, and it will always be the same.

So, both solutions will work and will give the same result; at least if your DB class is used every time an instance of your class is created, and, of course, the performance difference is likely to be negligible.

, singleton : singleton, ...

... Dependency Injection ( __construct, ), - , "Mock" DB .

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Answer 2

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